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Derivatives, Net - Summary of Non-Designated Foreign Exchange Forwards (Details) - Not Designated as Hedging Instrument
12 Months Ended
Dec. 31, 2019
USD ($)
contract
Dec. 31, 2018
USD ($)
contract
Interest Rate Swap    
Derivative [Line Items]    
Number of Contracts | contract 1  
Aggregate Notional Amount (in Thousands) | $ $ 500,000,000  
Weighted-Average Years to Maturity 6 years 4 months 13 days 8 months 8 days
GBP | Forward Currency Contract    
Derivative [Line Items]    
Number of Contracts | contract 156 43
Aggregate Notional Amount (in Thousands) | $ $ 735,349,000 $ 270,161
Weighted-Average Years to Maturity 1 year 5 months 26 days  
EUR | Forward Currency Contract    
Derivative [Line Items]    
Number of Contracts | contract 44  
Aggregate Notional Amount (in Thousands) | $ $ 168,879,000  
Weighted-Average Years to Maturity 3 years 2 months 19 days